An AFT 700-3 large premium tracked paver from Ammann has been used on a road in Seosan City, South Korea. The project, 120-km south of Seoul, involved paving testing ground access roads for Hankook Tire. It also consisted of paving work adjacent to the main test roads. Handling the job was Daero Construction Co Ltd.
The paving crew utilised a Moba Big Sonic Ski with sensors for precise placement and smoothness. The ski can work as wide as 13 m, though this project called for passes of 12 m. The crew worked at a pace of about 5 m/min, placing roughly 200 t/hr. The project was expected to be completed in the first quarter of this year.
The AFT 700-3 paver utilised a high-compaction screed, which employed tamping and vibrating features as the mix was placed. The operator, Mr Baek, described the asphalt used as “typical road pavement mix.” He said the paver is powerful and its tracks grip well. He also praised the intuitiveness provided by PaveManager 2.0, a CAN-based automated system that constantly monitors the paving process and gives feedback to operators.
The PaveManager 2.0 system is connected to both the main operator control and the screed remote control panels, providing a complete overview. It automates many key functions and allows slope and/or crowning to be programmed. The AFT 700-3 paver meets US EPA Tier 4 Final and EU Stage 4 emissions standards.
Mr Baek further appreciated the ease of operation that results from the integration of the auger and sonic sensors. Ammann large premium tracked pavers feature efficient and consistent material feeding that ensures proper auger coverage and mix distribution across the screed. Automated processes lead to consistency throughout the operation.
A reversible twin conveyor system enables material to flow consistently from the hopper. The material conveyor is tunnel-shaped to optimise flow and limit segregation. Also utilised is proportional speed control with a paddle sensor system.
The auger system delivers consistent distribution of material across the screed, essential to placing a quality mat with minimal segregation. The system features sonic sensors that provide proportional speed control. The left and right augers are independently driven and reversible.
Daero is known for its high-quality construction work and advanced capabilities on large-scale paving projects. The company specialises in road pavement construction, including a high volume of governmental work.